Home / 158,559.04-218,814.44-86,934.76

Finding the Fourth Proportional to 158,559.04, 218,814.44 and 86,934.76

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Solution

The fourth proportional to 158,559.04, 218,814.44 and 86,934.76 is: 119,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,559.04 : 218,814.44 = 86,934.76 : x
  2. Step 2: Convert to fraction form
    158,559.04/218,814.44 = 86,934.76/x
  3. Step 3: Cross multiply
    158,559.04x = 218,814.44 × 86,934.76
  4. Step 4: Simplify right side
    158,559.04x = 19,022,580,825.93
  5. Step 5: Solve for x
    x = 19,022,580,825.93/158,559.04
  6. Step 6: Final answer
    x = 119,971.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.